package com.zipking.cloud.springbootmybatis.util;

import java.awt.AlphaComposite;
import java.awt.Color;
import java.awt.Font;
import java.awt.Graphics;
import java.awt.Graphics2D;
import java.awt.Point;
import java.awt.Rectangle;
import java.awt.color.ColorSpace;
import java.awt.image.BufferedImage;
import java.awt.image.ColorConvertOp;
import java.io.*;
import java.util.Iterator;
import java.util.List;

import javax.imageio.ImageIO;
import javax.imageio.ImageReadParam;
import javax.imageio.ImageReader;
import javax.imageio.stream.ImageInputStream;

import com.sun.image.codec.jpeg.JPEGCodec;
import com.sun.image.codec.jpeg.JPEGImageEncoder;
/*
 * @Editor 吕习伟
 * @OldAuthor 胡
 * @Date 14:32 2020/4/20
 * @Param
 * @return
 * @Description TODO (新增图片格式  新增自动识别xywh四点切割 原有方法思路不变)
 **/

public class OperateImage{

    public OperateImage() {
        super();
    }

    /**
     * 对图片裁剪，并把裁剪新图片保存
     * @param srcPath 读取源图片路径
     * @param toPath  写入图片路径
     * @param x 剪切起始点x坐标
     * @param y 剪切起始点y坐标
     * @param width 剪切宽度
     * @param height   剪切高度
     * @param readImageFormat  读取图片格式
     * @param writeImageFormat 写入图片格式
     * @throws IOException
     */
    public void cropImage(String srcPath,String toPath,
                          int x,int y,int width,int height,
                          String readImageFormat,String writeImageFormat) throws IOException{
        FileInputStream fis = null ;
        ImageInputStream iis =null ;
        try{
            //读取图片文件
            fis = new FileInputStream(srcPath);
            Iterator it = ImageIO.getImageReadersByFormatName(readImageFormat);
            ImageReader reader = (ImageReader) it.next();
            //获取图片流
            iis = ImageIO.createImageInputStream(fis);
            reader.setInput(iis,true) ;
            ImageReadParam param = reader.getDefaultReadParam();
            //定义一个矩形
            Rectangle rect = new Rectangle(x, y, width, height);
            //提供一个 BufferedImage，将其用作解码像素数据的目标。
            param.setSourceRegion(rect);
            BufferedImage bi = reader.read(0,param);
            //保存新图片
            ImageIO.write(bi, writeImageFormat, new File(toPath));
        }finally{
            if(fis!=null)
                fis.close();
            if(iis!=null)
                iis.close();
        }
    }
    /**
     * 对图片裁剪，并把裁剪新图片保存
     * @param bytes  读取图片二进制
     * @param position  图片切割位置
     * @param readImageFormat  读取图片格式
     * @param writeImageFormat 写入图片格式
     * @throws IOException
     */
    public byte[] cropImage(byte[] bytes,int[] position, String readImageFormat,String writeImageFormat) throws IOException{
        FileInputStream fis = null ;
        ImageInputStream iis =null ;
        InputStream is = null;
        ByteArrayOutputStream out=null;
        int x=position[0];
        int y=position[1];
        int width=position[2];
        int height=position[3];
        try{
            //读取图片文件
            //fis = new FileInputStream();
            is = new ByteArrayInputStream(bytes);
            Iterator it = ImageIO.getImageReadersByFormatName(readImageFormat);
            ImageReader reader = (ImageReader) it.next();
            //获取图片流
            iis = ImageIO.createImageInputStream(is);
            reader.setInput(iis,true) ;
            ImageReadParam param = reader.getDefaultReadParam();
            //定义一个矩形
            Rectangle rect = new Rectangle(x, y, width, height);
            //提供一个 BufferedImage，将其用作解码像素数据的目标。
            param.setSourceRegion(rect);
            BufferedImage bi = reader.read(0,param);
            //保存新图片
            out = new ByteArrayOutputStream();
            ImageIO.write(bi, writeImageFormat, out);
            return out.toByteArray();
        }finally{
            if(fis!=null)
                fis.close();
            if(iis!=null)
                iis.close();
        }
    }


    /**
     * 按倍率缩小图片
     * @param srcImagePath 读取图片路径
     * @param toImagePath 写入图片路径
     * @param widthRatio  宽度缩小比例
     * @param heightRatio   高度缩小比例
     * @throws IOException
     */
    public void reduceImageByRatio(String srcImagePath,String toImagePath,int widthRatio,int heightRatio) throws IOException{
        FileOutputStream out = null;
        try{
            //读入文件
            File file = new File(srcImagePath);
            // 构造Image对象
            BufferedImage src = ImageIO.read(file);
            int width = src.getWidth();
            int height = src.getHeight();
            // 缩小边长
            BufferedImage tag = new BufferedImage(width / widthRatio, height / heightRatio, BufferedImage.TYPE_INT_RGB);
            // 绘制 缩小  后的图片
            tag.getGraphics().drawImage(src, 0, 0, width / widthRatio, height / heightRatio, null);
            out = new FileOutputStream(toImagePath);
            JPEGImageEncoder encoder = JPEGCodec.createJPEGEncoder(out);
            encoder.encode(tag);
        }catch(Exception e){
            e.printStackTrace();
        }finally{
            if(out != null){
                out.close();
            }
        }
    }

    /**
     * 长高等比例缩小图片
     * @param srcImagePath 读取图片路径
     * @param toImagePath 写入图片路径
     * @param ratio 缩小比例
     * @throws IOException
     */
    public void reduceImageEqualProportion(String srcImagePath,String toImagePath,int ratio) throws IOException{
        FileOutputStream out = null;
        try{
            //读入文件
            File file = new File(srcImagePath);
            // 构造Image对象
            BufferedImage src = ImageIO.read(file);
            int width = src.getWidth();
            int height = src.getHeight();
            // 缩小边长
            BufferedImage tag = new BufferedImage(width / ratio, height / ratio, BufferedImage.TYPE_INT_RGB);
            // 绘制 缩小  后的图片
            tag.getGraphics().drawImage(src, 0, 0, width / ratio, height / ratio, null);
            out = new FileOutputStream(toImagePath);
            JPEGImageEncoder encoder = JPEGCodec.createJPEGEncoder(out);
            encoder.encode(tag);
        }catch(Exception e){
            e.printStackTrace();
        }finally{
            if(out != null){
                out.close();
            }
        }
    }

    /**
     * 按倍率放大图片
     * @param srcImagePath 读取图形路径
     * @param toImagePath 写入入行路径
     * @param widthRatio  宽度放大比例
     * @param heightRatio 高度放大比例
     * @throws IOException
     */
    public void enlargementImageByRatio(String srcImagePath,String toImagePath,int widthRatio,int heightRatio) throws IOException{
        FileOutputStream out = null;
        try{
            //读入文件
            File file = new File(srcImagePath);
            // 构造Image对象
            BufferedImage src = ImageIO.read(file);
            int width = src.getWidth();
            int height = src.getHeight();
            // 放大边长
            BufferedImage tag = new BufferedImage(width * widthRatio, height * heightRatio, BufferedImage.TYPE_INT_RGB);
            //绘制放大后的图片
            tag.getGraphics().drawImage(src, 0, 0, width * widthRatio, height * heightRatio, null);
            out = new FileOutputStream(toImagePath);
            JPEGImageEncoder encoder = JPEGCodec.createJPEGEncoder(out);
            encoder.encode(tag);
        }catch(Exception e){
            e.printStackTrace();
        }finally{
            if(out != null){
                out.close();
            }
        }
    }


    /**
     * 长高等比例放大图片
     * @param srcImagePath 读取图形路径
     * @param toImagePath 写入入行路径
     * @param ratio  放大比例
     * @throws IOException
     */
    public void enlargementImageEqualProportion(String srcImagePath,String toImagePath,int ratio) throws IOException{
        FileOutputStream out = null;
        try{
            //读入文件
            File file = new File(srcImagePath);
            // 构造Image对象
            BufferedImage src = ImageIO.read(file);
            int width = src.getWidth();
            int height = src.getHeight();
            // 放大边长
            BufferedImage tag = new BufferedImage(width * ratio, height * ratio, BufferedImage.TYPE_INT_RGB);
            //绘制放大后的图片
            tag.getGraphics().drawImage(src, 0, 0, width * ratio, height * ratio, null);
            out = new FileOutputStream(toImagePath);
            JPEGImageEncoder encoder = JPEGCodec.createJPEGEncoder(out);
            encoder.encode(tag);
        }catch(Exception e){
            e.printStackTrace();
        }finally{
            if(out != null){
                out.close();
            }
        }
    }

    /**
     * 重置图形的边长大小
     * @param srcImagePath
     * @param toImagePath
     * @param width
     * @param height
     * @throws IOException
     */
    public void resizeImage(String srcImagePath,String toImagePath,int width,int height) throws IOException{
        FileOutputStream out = null;
        try{
            //读入文件
            File file = new File(srcImagePath);
            // 构造Image对象
            BufferedImage src = ImageIO.read(file);
            // 放大边长
            BufferedImage tag = new BufferedImage(width, height, BufferedImage.TYPE_INT_RGB);
            //绘制放大后的图片
            tag.getGraphics().drawImage(src, 0, 0, width, height, null);
            out = new FileOutputStream(toImagePath);
            JPEGImageEncoder encoder = JPEGCodec.createJPEGEncoder(out);
            encoder.encode(tag);
        }catch(Exception e){
            e.printStackTrace();
        }finally{
            if(out != null){
                out.close();
            }
        }
    }

    /**
     * 横向拼接图片（两张）
     * @param firstSrcImagePath 第一张图片的路径
     * @param secondSrcImagePath  第二张图片的路径
     * @param imageFormat  拼接生成图片的格式
     * @param toPath  拼接生成图片的路径
     */
    public void joinImagesHorizontal(String firstSrcImagePath, String secondSrcImagePath,String imageFormat, String toPath){
        try {
            //读取第一张图片
            File  fileOne  =  new  File(firstSrcImagePath);
            BufferedImage  imageOne = ImageIO.read(fileOne);
            int  width  =  imageOne.getWidth();//图片宽度
            int  height  =  imageOne.getHeight();//图片高度
            //从图片中读取RGB
            int[]  imageArrayOne  =  new  int[width*height];
            imageArrayOne  =  imageOne.getRGB(0,0,width,height,imageArrayOne,0,width);

            //对第二张图片做相同的处理
            File  fileTwo  =  new  File(secondSrcImagePath);
            BufferedImage  imageTwo  =  ImageIO.read(fileTwo);
            int width2 = imageTwo.getWidth();
            int height2 = imageTwo.getHeight();
            int[]   ImageArrayTwo  =  new  int[width2*height2];
            ImageArrayTwo  =  imageTwo.getRGB(0,0,width,height,ImageArrayTwo,0,width);
            //ImageArrayTwo  =  imageTwo.getRGB(0,0,width2,height2,ImageArrayTwo,0,width2);

            //生成新图片
            //int height3 = (height>height2 || height==height2)?height:height2;
            BufferedImage  imageNew  =  new  BufferedImage(width*2,height,BufferedImage.TYPE_INT_RGB);
            //BufferedImage  imageNew  =  new  BufferedImage(width+width2,height3,BufferedImage.TYPE_INT_RGB);
            imageNew.setRGB(0,0,width,height,imageArrayOne,0,width);//设置左半部分的RGB
            imageNew.setRGB(width,0,width,height,ImageArrayTwo,0,width);//设置右半部分的RGB
            //imageNew.setRGB(width,0,width2,height2,ImageArrayTwo,0,width2);//设置右半部分的RGB

            File  outFile  =  new  File(toPath);
            ImageIO.write(imageNew,  imageFormat,  outFile);//写图片
        } catch (Exception e) {
            e.printStackTrace();
        }
    }

    /**
     * 横向拼接一组（多张）图像
     * @param pics  将要拼接的图像
     * @param type 图像写入格式
     * @param dst_pic 图像写入路径
     * @return
     */
    public  boolean joinImageListHorizontal(String[] pics, String type, String dst_pic) {
        try {
            int len = pics.length;
            if (len < 1) {
                System.out.println("pics len < 1");
                return false;
            }
            File[] src = new File[len];
            BufferedImage[] images = new BufferedImage[len];
            int[][] imageArrays = new int[len][];
            for (int i = 0; i < len; i++) {
                src[i] = new File(pics[i]);
                images[i] = ImageIO.read(src[i]);
                int width = images[i].getWidth();
                int height = images[i].getHeight();
                imageArrays[i] = new int[width * height];// 从图片中读取RGB
                imageArrays[i] = images[i].getRGB(0, 0, width, height,  imageArrays[i], 0, width);
            }

            int dst_width = 0;
            int dst_height = images[0].getHeight();
            for (int i = 0; i < images.length; i++) {
                dst_height = dst_height > images[i].getHeight() ? dst_height : images[i].getHeight();
                dst_width += images[i].getWidth();
            }
            //System.out.println(dst_width);
            //System.out.println(dst_height);
            if (dst_height < 1) {
                System.out.println("dst_height < 1");
                return false;
            }
            /*
             * 生成新图片
             */
            BufferedImage ImageNew = new BufferedImage(dst_width, dst_height,  BufferedImage.TYPE_INT_RGB);
            int width_i = 0;
            for (int i = 0; i < images.length; i++) {
                ImageNew.setRGB(width_i, 0, images[i].getWidth(), dst_height,  imageArrays[i], 0, images[i].getWidth());
                width_i += images[i].getWidth();
            }
            File outFile = new File(dst_pic);
            ImageIO.write(ImageNew, type, outFile);// 写图片
        } catch (Exception e) {
            e.printStackTrace();
            return false;
        }
        return true;
    }

    /**
     * 纵向拼接图片（两张）
     * @param firstSrcImagePath 读取的第一张图片
     * @param secondSrcImagePath  读取的第二张图片
     * @param imageFormat 图片写入格式
     * @param toPath  图片写入路径
     */
    public void joinImagesVertical(String firstSrcImagePath, String secondSrcImagePath,String imageFormat, String toPath){
        try {
            //读取第一张图片
            File  fileOne  =  new  File(firstSrcImagePath);
            BufferedImage  imageOne = ImageIO.read(fileOne);
            int  width  =  imageOne.getWidth();//图片宽度
            int  height  =  imageOne.getHeight();//图片高度
            //从图片中读取RGB
            int[]  imageArrayOne  =  new  int[width*height];
            imageArrayOne  =  imageOne.getRGB(0,0,width,height,imageArrayOne,0,width);

            //对第二张图片做相同的处理
            File  fileTwo  =  new  File(secondSrcImagePath);
            BufferedImage  imageTwo  =  ImageIO.read(fileTwo);
            int width2 = imageTwo.getWidth();
            int height2 = imageTwo.getHeight();
            int[]   ImageArrayTwo  =  new  int[width2*height2];
            ImageArrayTwo  =  imageTwo.getRGB(0,0,width,height,ImageArrayTwo,0,width);
            //ImageArrayTwo  =  imageTwo.getRGB(0,0,width2,height2,ImageArrayTwo,0,width2);

            //生成新图片
            //int width3 = (width>width2 || width==width2)?width:width2;
            BufferedImage  imageNew  =  new  BufferedImage(width,height*2,BufferedImage.TYPE_INT_RGB);
            //BufferedImage  imageNew  =  new  BufferedImage(width3,height+height2,BufferedImage.TYPE_INT_RGB);
            imageNew.setRGB(0,0,width,height,imageArrayOne,0,width);//设置上半部分的RGB
            imageNew.setRGB(0,height,width,height,ImageArrayTwo,0,width);//设置下半部分的RGB
            //imageNew.setRGB(0,height,width2,height2,ImageArrayTwo,0,width2);//设置下半部分的RGB

            File  outFile  =  new  File(toPath);
            ImageIO.write(imageNew,  imageFormat,  outFile);//写图片
        } catch (Exception e) {
            e.printStackTrace();
        }
    }

    /**
     * 纵向拼接一组（多张）图像
     * @param pics    将要拼接的图像数组
     * @param type  写入图像类型
     * @param dst_pic  写入图像路径
     * @return
     */
    public  boolean joinImageListVertical(String[] pics, String type, String dst_pic) {
        try {
            int len = pics.length;
            if (len < 1) {
                System.out.println("pics len < 1");
                return false;
            }
            File[] src = new File[len];
            BufferedImage[] images = new BufferedImage[len];
            int[][] imageArrays = new int[len][];
            for (int i = 0; i < len; i++) {
                //System.out.println(i);
                src[i] = new File(pics[i]);
                images[i] = ImageIO.read(src[i]);
                int width = images[i].getWidth();
                int height = images[i].getHeight();
                imageArrays[i] = new int[width * height];// 从图片中读取RGB
                imageArrays[i] = images[i].getRGB(0, 0, width, height,  imageArrays[i], 0, width);
            }

            int dst_height = 0;
            int dst_width = images[0].getWidth();
            for (int i = 0; i < images.length; i++) {
                dst_width = dst_width > images[i].getWidth() ? dst_width : images[i].getWidth();
                dst_height += images[i].getHeight();
            }
            //System.out.println(dst_width);
            //System.out.println(dst_height);
            if (dst_height < 1) {
                System.out.println("dst_height < 1");
                return false;
            }
            /*
             * 生成新图片
             */
            BufferedImage ImageNew = new BufferedImage(dst_width, dst_height,  BufferedImage.TYPE_INT_RGB);
            int height_i = 0;
            for (int i = 0; i < images.length; i++) {
                ImageNew.setRGB(0, height_i, dst_width, images[i].getHeight(),  imageArrays[i], 0, dst_width);
                height_i += images[i].getHeight();
            }
            File outFile = new File(dst_pic);
            ImageIO.write(ImageNew, type, outFile);// 写图片
        } catch (Exception e) {
            e.printStackTrace();
            return false;
        }
        return true;
    }

    /**
     * 合并图片(按指定初始x、y坐标将附加图片贴到底图之上)
     * @param negativeImagePath 背景图片路径
     * @param additionImagePath  附加图片路径
     * @param x 附加图片的起始点x坐标
     * @param y  附加图片的起始点y坐标
     * @param toPath 图片写入路径
     * @throws IOException
     */
    public void mergeBothImage(String negativeImagePath,String additionImagePath,int x,int y,String toPath ) throws IOException{
        InputStream is= null;
        InputStream is2= null;
        OutputStream os = null;
        try{
            is=new FileInputStream(negativeImagePath);
            is2=new FileInputStream(additionImagePath);
            BufferedImage image=ImageIO.read(is);
            BufferedImage image2=ImageIO.read(is2);
            Graphics g=image.getGraphics();
            g.drawImage(image2,x,y,null);
            os = new FileOutputStream(toPath);
            JPEGImageEncoder enc=JPEGCodec.createJPEGEncoder(os);
            enc.encode(image);
        }catch(Exception e){
            e.printStackTrace();
        }finally{
            if(os != null){
                os.close();
            }
            if(is2 != null){
                is2.close();
            }
            if(is != null){
                is.close();
            }
        }
    }

    /**
     * 将一组图片一次性附加合并到底图上
     * @param negativeImagePath    源图像（底图）路径
     * @param additionImageList  附加图像信息列表
     * @param imageFormat  图像写入格式
     * @param toPath  图像写入路径
     * @throws IOException
     */
    public void mergeImageList(String negativeImagePath,List additionImageList,String imageFormat, String toPath) throws IOException{
        InputStream is= null;
        InputStream is2= null;
        OutputStream os = null;
        try{
            is=new FileInputStream(negativeImagePath);
            BufferedImage image=ImageIO.read(is);
            //Graphics g=image.getGraphics();
            Graphics2D g = image.createGraphics();;
            BufferedImage image2 = null;
            if(additionImageList != null){
                for(int i=0;i<additionImageList.size();i++){
                    //解析附加图片信息：x坐标、 y坐标、 additionImagePath附加图片路径
                    //图片信息存储在一个数组中
                    String[] additionImageInfo = (String[]) additionImageList.get(i);
                    int x = Integer.parseInt(additionImageInfo[0]);
                    int y = Integer.parseInt(additionImageInfo[1]);
                    String additionImagePath = additionImageInfo[2];
                    //读取文件输入流，并合并图片
                    is2 = new FileInputStream(additionImagePath);
                    //System.out.println(x+"  :  "+y+"  :  "+additionImagePath);
                    image2 = ImageIO.read(is2);
                    g.drawImage(image2,x,y,null);
                }
            }
            os = new FileOutputStream(toPath);
            ImageIO.write(image,  imageFormat,  os);//写图片
            //JPEGImageEncoder enc=JPEGCodec.createJPEGEncoder(os);
            //enc.encode(image);
        }catch(Exception e){
            e.printStackTrace();
        }finally{
            if(os != null){
                os.close();
            }
            if(is2 != null){
                is2.close();
            }
            if(is != null){
                is.close();
            }
        }
    }

    /**
     * 将附加图片合并到底图的左上角
     * @param negativeImagePath 底图路径
     * @param additionImagePath  附加图片路径
     * @param toPath  合成图片写入路径
     * @throws IOException
     */
    public void mergeBothImageTopleftcorner(String negativeImagePath,String additionImagePath,String toPath ) throws IOException{
        InputStream is= null;
        InputStream is2= null;
        OutputStream os = null;
        try{
            is=new FileInputStream(negativeImagePath);
            is2=new FileInputStream(additionImagePath);
            BufferedImage image=ImageIO.read(is);
            BufferedImage image2=ImageIO.read(is2);
            Graphics g=image.getGraphics();
            g.drawImage(image2,0,0,null);
            os = new FileOutputStream(toPath);
            JPEGImageEncoder enc=JPEGCodec.createJPEGEncoder(os);
            enc.encode(image);
        }catch(Exception e){
            e.printStackTrace();
        }finally{
            if(os != null){
                os.close();
            }
            if(is2 != null){
                is2.close();
            }
            if(is != null){
                is.close();
            }
        }
    }

    /**
     * 将附加图片合并到底图的右上角
     * @param negativeImagePath 底图路径
     * @param additionImagePath  附加图片路径
     * @param toPath  合成图片写入路径
     * @throws IOException
     */
    public void mergeBothImageToprightcorner(String negativeImagePath,String additionImagePath,String toPath ) throws IOException{
        InputStream is= null;
        InputStream is2= null;
        OutputStream os = null;
        try{
            is=new FileInputStream(negativeImagePath);
            is2=new FileInputStream(additionImagePath);
            BufferedImage image=ImageIO.read(is);
            BufferedImage image2=ImageIO.read(is2);
            Graphics g=image.getGraphics();
            g.drawImage(image2,image.getWidth()-image2.getWidth(),0,null);
            os = new FileOutputStream(toPath);
            JPEGImageEncoder enc=JPEGCodec.createJPEGEncoder(os);
            enc.encode(image);
        }catch(Exception e){
            e.printStackTrace();
        }finally{
            if(os != null){
                os.close();
            }
            if(is2 != null){
                is2.close();
            }
            if(is != null){
                is.close();
            }
        }
    }

    /**
     * 将附加图片合并到底图的左下角
     * @param negativeImagePath 底图路径
     * @param additionImagePath  附加图片路径
     * @param toPath  合成图片写入路径
     * @throws IOException
     */
    public void mergeBothImageLeftbottom(String negativeImagePath,String additionImagePath,String toPath ) throws IOException{
        InputStream is= null;
        InputStream is2= null;
        OutputStream os = null;
        try{
            is=new FileInputStream(negativeImagePath);
            is2=new FileInputStream(additionImagePath);
            BufferedImage image=ImageIO.read(is);
            BufferedImage image2=ImageIO.read(is2);
            Graphics g=image.getGraphics();
            g.drawImage(image2,0,image.getHeight()-image2.getHeight(),null);
            os = new FileOutputStream(toPath);
            JPEGImageEncoder enc=JPEGCodec.createJPEGEncoder(os);
            enc.encode(image);
        }catch(Exception e){
            e.printStackTrace();
        }finally{
            if(os != null){
                os.close();
            }
            if(is2 != null){
                is2.close();
            }
            if(is != null){
                is.close();
            }
        }
    }

    /**
     * 将附加图片合并到底图的左下角
     * @param negativeImagePath 底图路径
     * @param additionImagePath  附加图片路径
     * @param toPath  合成图片写入路径
     * @throws IOException
     */
    public void mergeBothImageRightbottom(String negativeImagePath,String additionImagePath,String toPath ) throws IOException{
        InputStream is= null;
        InputStream is2= null;
        OutputStream os = null;
        try{
            is=new FileInputStream(negativeImagePath);
            is2=new FileInputStream(additionImagePath);
            BufferedImage image=ImageIO.read(is);
            BufferedImage image2=ImageIO.read(is2);
            Graphics g=image.getGraphics();
            g.drawImage(image2,image.getWidth()-image2.getWidth(),image.getHeight()-image2.getHeight(),null);
            os = new FileOutputStream(toPath);
            JPEGImageEncoder enc=JPEGCodec.createJPEGEncoder(os);
            enc.encode(image);
        }catch(Exception e){
            e.printStackTrace();
        }finally{
            if(os != null){
                os.close();
            }
            if(is2 != null){
                is2.close();
            }
            if(is != null){
                is.close();
            }
        }
    }

    /**
     * 将附加图片合并到底图的正中央
     * @param negativeImagePath 底图路径
     * @param additionImagePath  附加图片路径
     * @param toPath  合成图片写入路径
     * @throws IOException
     */
    public void mergeBothImageCenter(String negativeImagePath,String additionImagePath,String toPath ) throws IOException{
        InputStream is= null;
        InputStream is2= null;
        OutputStream os = null;
        try{
            is=new FileInputStream(negativeImagePath);
            is2=new FileInputStream(additionImagePath);
            BufferedImage image=ImageIO.read(is);
            BufferedImage image2=ImageIO.read(is2);
            Graphics g=image.getGraphics();
            g.drawImage(image2,image.getWidth()/2-image2.getWidth()/2,image.getHeight()/2-image2.getHeight()/2,null);
            os = new FileOutputStream(toPath);
            JPEGImageEncoder enc=JPEGCodec.createJPEGEncoder(os);
            enc.encode(image);
        }catch(Exception e){
            e.printStackTrace();
        }finally{
            if(os != null){
                os.close();
            }
            if(is2 != null){
                is2.close();
            }
            if(is != null){
                is.close();
            }
        }
    }

    /**
     * 将附加图片合并到底图的上边中央
     * @param negativeImagePath 底图路径
     * @param additionImagePath  附加图片路径
     * @param toPath  合成图片写入路径
     * @throws IOException
     */
    public void mergeBothImageTopcenter(String negativeImagePath,String additionImagePath,String toPath ) throws IOException{
        InputStream is= null;
        InputStream is2= null;
        OutputStream os = null;
        try{
            is=new FileInputStream(negativeImagePath);
            is2=new FileInputStream(additionImagePath);
            BufferedImage image=ImageIO.read(is);
            BufferedImage image2=ImageIO.read(is2);
            Graphics g=image.getGraphics();
            g.drawImage(image2,image.getWidth()/2-image2.getWidth()/2,0,null);
            os = new FileOutputStream(toPath);
            JPEGImageEncoder enc=JPEGCodec.createJPEGEncoder(os);
            enc.encode(image);
        }catch(Exception e){
            e.printStackTrace();
        }finally{
            if(os != null){
                os.close();
            }
            if(is2 != null){
                is2.close();
            }
            if(is != null){
                is.close();
            }
        }
    }

    /**
     * 将附加图片合并到底图的下边中央
     * @param negativeImagePath 底图路径
     * @param additionImagePath  附加图片路径
     * @param toPath  合成图片写入路径
     * @throws IOException
     */
    public void mergeBothImageBottomcenter(String negativeImagePath,String additionImagePath,String toPath ) throws IOException{
        InputStream is= null;
        InputStream is2= null;
        OutputStream os = null;
        try{
            is=new FileInputStream(negativeImagePath);
            is2=new FileInputStream(additionImagePath);
            BufferedImage image=ImageIO.read(is);
            BufferedImage image2=ImageIO.read(is2);
            Graphics g=image.getGraphics();
            g.drawImage(image2,image.getWidth()/2-image2.getWidth()/2,image.getHeight()-image2.getHeight(),null);
            os = new FileOutputStream(toPath);
            JPEGImageEncoder enc=JPEGCodec.createJPEGEncoder(os);
            enc.encode(image);
        }catch(Exception e){
            e.printStackTrace();
        }finally{
            if(os != null){
                os.close();
            }
            if(is2 != null){
                is2.close();
            }
            if(is != null){
                is.close();
            }
        }
    }

    /**
     * 将附加图片合并到底图的左边中央
     * @param negativeImagePath 底图路径
     * @param additionImagePath  附加图片路径
     * @param toPath  合成图片写入路径
     * @throws IOException
     */
    public void mergeBothImageLeftcenter(String negativeImagePath,String additionImagePath,String toPath ) throws IOException{
        InputStream is= null;
        InputStream is2= null;
        OutputStream os = null;
        try{
            is=new FileInputStream(negativeImagePath);
            is2=new FileInputStream(additionImagePath);
            BufferedImage image=ImageIO.read(is);
            BufferedImage image2=ImageIO.read(is2);
            Graphics g=image.getGraphics();
            g.drawImage(image2,0,image.getHeight()/2-image2.getHeight()/2,null);
            os = new FileOutputStream(toPath);
            JPEGImageEncoder enc=JPEGCodec.createJPEGEncoder(os);
            enc.encode(image);
        }catch(Exception e){
            e.printStackTrace();
        }finally{
            if(os != null){
                os.close();
            }
            if(is2 != null){
                is2.close();
            }
            if(is != null){
                is.close();
            }
        }
    }

    /**
     * 将附加图片合并到底图的右边中央
     * @param negativeImagePath 底图路径
     * @param additionImagePath  附加图片路径
     * @param toPath  合成图片写入路径
     * @throws IOException
     */
    public void mergeBothImageRightcenter(String negativeImagePath,String additionImagePath,String toPath ) throws IOException{
        InputStream is= null;
        InputStream is2= null;
        OutputStream os = null;
        try{
            is=new FileInputStream(negativeImagePath);
            is2=new FileInputStream(additionImagePath);
            BufferedImage image=ImageIO.read(is);
            BufferedImage image2=ImageIO.read(is2);
            Graphics g=image.getGraphics();
            g.drawImage(image2,image.getWidth()-image2.getWidth(),image.getHeight()/2-image2.getHeight()/2,null);
            os = new FileOutputStream(toPath);
            JPEGImageEncoder enc=JPEGCodec.createJPEGEncoder(os);
            enc.encode(image);
        }catch(Exception e){
            e.printStackTrace();
        }finally{
            if(os != null){
                os.close();
            }
            if(is2 != null){
                is2.close();
            }
            if(is != null){
                is.close();
            }
        }
    }

    /**
     * 图片灰化操作
     * @param srcImage 读取图片路径
     * @param toPath  写入灰化后的图片路径
     * @param imageFormat 图片写入格式
     */
    public void grayImage(String srcImage,String toPath,String imageFormat){
        try{
            BufferedImage src = ImageIO.read(new File(srcImage));
            ColorSpace cs = ColorSpace.getInstance(ColorSpace.CS_GRAY);
            ColorConvertOp op = new ColorConvertOp(cs, null);
            src = op.filter(src, null);
            ImageIO.write(src, imageFormat, new File(toPath));
        }catch(Exception e){
            e.printStackTrace();
        }
    }

    /**
     * 在源图片上设置水印文字
     * @param srcImagePath  源图片路径
     * @param alpha  透明度（0<alpha<1）
     * @param font  字体（例如：宋体）
     * @param fontStyle    字体格式(例如：普通样式--Font.PLAIN、粗体--Font.BOLD )
     * @param fontSize  字体大小
     * @param color  字体颜色(例如：黑色--Color.BLACK)
     * @param inputWords    输入显示在图片上的文字
     * @param x    文字显示起始的x坐标
     * @param y    文字显示起始的y坐标
     * @param imageFormat  写入图片格式（png/jpg等）
     * @param toPath  写入图片路径
     * @throws IOException
     */
    public void alphaWords2Image(String srcImagePath,float alpha,
                                 String font,int fontStyle,int fontSize,Color color,
                                 String inputWords,int x,int y,String imageFormat,String toPath) throws IOException{
        FileOutputStream fos=null;
        try {
            BufferedImage image = ImageIO.read(new File(srcImagePath));
            //创建java2D对象
            Graphics2D g2d=image.createGraphics();
            //用源图像填充背景
            g2d.drawImage(image, 0, 0, image.getWidth(), image.getHeight(), null, null);
            //设置透明度
            AlphaComposite ac = AlphaComposite.getInstance(AlphaComposite.SRC_OVER, alpha);
            g2d.setComposite(ac);
            //设置文字字体名称、样式、大小
            g2d.setFont(new Font(font, fontStyle, fontSize));
            g2d.setColor(color);//设置字体颜色
            g2d.drawString(inputWords, x, y); //输入水印文字及其起始x、y坐标
            g2d.dispose();
            fos=new FileOutputStream(toPath);
            ImageIO.write(image, imageFormat, fos);
        } catch (Exception e) {
            e.printStackTrace();
        }finally{
            if(fos!=null){
                fos.close();
            }
        }
    }

    /**
     * 在源图像上设置图片水印
     *   ---- 当alpha==1时文字不透明（和在图片上直接输入文字效果一样）
     * @param srcImagePath  源图片路径
     * @param appendImagePath  水印图片路径
     * @param alpha  透明度
     * @param x    水印图片的起始x坐标
     * @param y    水印图片的起始y坐标
     * @param width  水印图片的宽度
     * @param height    水印图片的高度
     * @param imageFormat  图像写入图片格式
     * @param toPath  图像写入路径
     * @throws IOException
     */
    public void alphaImage2Image(String srcImagePath,String appendImagePath,
                                 float alpha,int x,int y,int width,int height,
                                 String imageFormat,String toPath) throws IOException{
        FileOutputStream fos = null;
        try {
            BufferedImage image = ImageIO.read(new File(srcImagePath));
            //创建java2D对象
            Graphics2D g2d=image.createGraphics();
            //用源图像填充背景
            g2d.drawImage(image, 0, 0, image.getWidth(), image.getHeight(), null, null);
            //设置透明度
            AlphaComposite ac = AlphaComposite.getInstance(AlphaComposite.SRC_OVER, alpha);
            g2d.setComposite(ac);
            //设置水印图片的起始x/y坐标、宽度、高度
            BufferedImage appendImage = ImageIO.read(new File(appendImagePath));
            g2d.drawImage(appendImage, x, y, width, height, null, null);
            g2d.dispose();
            fos=new FileOutputStream(toPath);
            ImageIO.write(image, imageFormat, fos);
        } catch (Exception e) {
            e.printStackTrace();
        }finally{
            if(fos!=null){
                fos.close();
            }
        }
    }

    /**
     * 画单点 ---- 实际上是画一个填充颜色的圆
     * ---- 以指定点坐标为中心画一个小半径的圆形，并填充其颜色来充当点
     * @param srcImagePath   源图片颜色
     * @param x    点的x坐标
     * @param y    点的y坐标
     * @param width  填充的宽度
     * @param height  填充的高度
     * @param ovalColor  填充颜色
     * @param imageFormat  写入图片格式
     * @param toPath  写入路径
     * @throws IOException
     */
    public void drawPoint(String srcImagePath,int x,int y,int width,int height,Color ovalColor,String imageFormat,String toPath) throws IOException{
        FileOutputStream fos = null;
        try {
            //获取源图片
            BufferedImage image = ImageIO.read(new File(srcImagePath));
            //根据xy点坐标绘制连接线
            Graphics2D g2d = image.createGraphics();
            g2d.setColor(ovalColor);
            //填充一个椭圆形
            g2d.fillOval(x, y, width, height);
            fos = new FileOutputStream(toPath);
            ImageIO.write(image, imageFormat, fos);
        } catch (IOException e) {
            e.printStackTrace();
        }finally{
            if(fos!=null){
                fos.close();
            }
        }
    }

    /**
     * 画一组（多个）点---- 实际上是画一组（多个）填充颜色的圆
     * ---- 以指定点坐标为中心画一个小半径的圆形，并填充其颜色来充当点
     * @param srcImagePath  原图片路径
     * @param pointList  点列表
     * @param width  宽度
     * @param height    高度
     * @param ovalColor 填充颜色
     * @param imageFormat  写入图片颜色
     * @param toPath  写入路径
     * @throws IOException
     */
    public void drawPoints(String srcImagePath,List pointList,int width,int height,Color ovalColor,String imageFormat,String toPath) throws IOException{
        FileOutputStream fos = null;
        try {
            //获取源图片
            BufferedImage image = ImageIO.read(new File(srcImagePath));
            //根据xy点坐标绘制连接线
            Graphics2D g2d = image.createGraphics();
            g2d.setColor(ovalColor);
            //填充一个椭圆形
            if(pointList != null){
                for(int i=0;i<pointList.size();i++){
                    Point point = (Point)pointList.get(i);
                    int x = (int) point.getX();
                    int y = (int) point.getY();
                    g2d.fillOval(x, y, width, height);
                }
            }
            fos = new FileOutputStream(toPath);
            ImageIO.write(image, imageFormat, fos);
        } catch (IOException e) {
            e.printStackTrace();
        }finally{
            if(fos!=null){
                fos.close();
            }
        }
    }

    /**
     * 画线段
     * @param srcImagePath  源图片路径
     * @param x1  第一个点x坐标
     * @param y1  第一个点y坐标
     * @param x2  第二个点x坐标
     * @param y2  第二个点y坐标
     * @param lineColor 线条颜色
     * @param toPath  图像写入路径
     * @param imageFormat  图像写入格式
     * @throws IOException
     */
    public void drawLine(String srcImagePath,int x1,int y1,int x2,int y2, Color lineColor,String toPath,String imageFormat) throws IOException{
        FileOutputStream fos = null;
        try {
            //获取源图片
            BufferedImage image = ImageIO.read(new File(srcImagePath));
            //根据xy点坐标绘制连接线
            Graphics2D g2d = image.createGraphics();
            g2d.setColor(lineColor);
            g2d.drawLine( x1, y1, x2, y2);
            fos = new FileOutputStream(toPath);
            ImageIO.write(image, imageFormat, fos);
        } catch (IOException e) {
            e.printStackTrace();
        }finally{
            if(fos!=null){
                fos.close();
            }
        }
    }

    /**
     * 画折线 / 线段
     * ---- 2个点即画线段，多个点画折线
     * @param srcImagePath  源图片路径
     * @param xPoints  x坐标数组
     * @param yPoints  y坐标数组
     * @param nPoints  点的数量
     * @param lineColor  线条颜色
     * @param toPath  图像写入路径
     * @param imageFormat  图片写入格式
     * @throws IOException
     */
    public void drawPolyline(String srcImagePath,int[] xPoints, int[] yPoints, int nPoints,Color lineColor,String toPath,String imageFormat) throws IOException{
        FileOutputStream fos = null;
        try {
            //获取源图片
            BufferedImage image = ImageIO.read(new File(srcImagePath));
            //根据xy点坐标绘制连接线
            Graphics2D g2d = image.createGraphics();
            //设置线条颜色
            g2d.setColor(lineColor);
            g2d.drawPolyline(xPoints, yPoints, nPoints);
            //图像写出路径
            fos = new FileOutputStream(toPath);
            ImageIO.write(image, imageFormat, fos);
        } catch (IOException e) {
            e.printStackTrace();
        }finally{
            if(fos!=null){
                fos.close();
            }
        }
    }

    /**
     * 绘制折线，并突出显示转折点
     * @param srcImagePath  源图片路径
     * @param xPoints  x坐标数组
     * @param yPoints  y坐标数组
     * @param nPoints  点的数量
     * @param lineColor  连线颜色
     * @param width  点的宽度
     * @param height    点的高度
     * @param ovalColor  点的填充颜色
     * @param toPath  图像写入路径
     * @param imageFormat  图像写入格式
     * @throws IOException
     */
    public void drawPolylineShowPoints(String srcImagePath,int[] xPoints, int[] yPoints, int nPoints,Color lineColor,int width,int height,Color ovalColor,String toPath,String imageFormat) throws IOException{
        FileOutputStream fos = null;
        try {
            //获取源图片
            BufferedImage image = ImageIO.read(new File(srcImagePath));
            //根据xy点坐标绘制连接线
            Graphics2D g2d = image.createGraphics();
            //设置线条颜色
            g2d.setColor(lineColor);
            //画线条
            g2d.drawPolyline(xPoints, yPoints, nPoints);
            //设置圆点颜色
            g2d.setColor(ovalColor);
            //画圆点
            if(xPoints != null){
                for(int i=0;i<xPoints.length;i++){
                    int x = xPoints[i];
                    int y = yPoints[i];
                    g2d.fillOval(x, y, width, height);
                }
            }
            //图像写出路径
            fos = new FileOutputStream(toPath);
            ImageIO.write(image, imageFormat, fos);
        } catch (IOException e) {
            e.printStackTrace();
        }finally{
            if(fos!=null){
                fos.close();
            }
        }
    }


    /**
     * 绘制一个由 x 和 y 坐标数组定义的闭合多边形
     * @param srcImagePath 源图片路径
     * @param xPoints  x坐标数组
     * @param yPoints  y坐标数组
     * @param nPoints  坐标点的个数
     * @param polygonColor  线条颜色
     * @param imageFormat  图像写入格式
     * @param toPath  图像写入路径
     * @throws IOException
     */
    public void drawPolygon(String srcImagePath,int[] xPoints,int[] yPoints,int nPoints,Color polygonColor,String imageFormat,String toPath) throws IOException {
        FileOutputStream fos = null;
        try {
            //获取图片
            BufferedImage image = ImageIO.read(new File(srcImagePath));
            //根据xy点坐标绘制闭合多边形
            Graphics2D g2d = image.createGraphics();
            g2d.setColor(polygonColor);
            g2d.drawPolygon(xPoints, yPoints, nPoints);
            fos = new FileOutputStream(toPath);
            ImageIO.write(image, imageFormat, fos);
            g2d.dispose();
        } catch (Exception e) {
            e.printStackTrace();
        }finally{
            if(fos!=null){
                fos.close();
            }
        }
    }

    /**
     * 绘制并填充多边形
     * @param srcImagePath  源图像路径
     * @param xPoints  x坐标数组
     * @param yPoints  y坐标数组
     * @param nPoints  坐标点个数
     * @param polygonColor  多边形填充颜色
     * @param alpha  多边形部分透明度
     * @param imageFormat  写入图形格式
     * @param toPath  写入图形路径
     * @throws IOException
     */
    public void drawAndAlphaPolygon(String srcImagePath,int[] xPoints,int[] yPoints,int nPoints,Color polygonColor,float alpha,String imageFormat,String toPath) throws IOException{
        FileOutputStream fos = null;
        try {
            //获取图片
            BufferedImage image = ImageIO.read(new File(srcImagePath));
            //根据xy点坐标绘制闭合多边形
            Graphics2D g2d = image.createGraphics();
            g2d.setColor(polygonColor);
            //设置透明度
            AlphaComposite ac = AlphaComposite.getInstance(AlphaComposite.SRC_OVER, alpha);
            g2d.setComposite(ac);
            g2d.fillPolygon(xPoints, yPoints, nPoints);
            fos = new FileOutputStream(toPath);
            ImageIO.write(image, imageFormat, fos);
            g2d.dispose();
        } catch (Exception e) {
            e.printStackTrace();
        }finally{
            if(fos!=null){
                fos.close();
            }
        }
    }



}
